Double Fulcrum stroke?

The ebay item you seem to point to is a Black Boar pool cue. Is that the link you meant to post?
 
I've never heard of this. If I were forced to guess, I'd say that it might be referring to a piston stroke in which the cue travels in a perfectly straight line along its axis (and requires sort of a double action in the elbow).

But the person you really need to talk to, it appears, is Tony from Black Boar cues, since he seems to be the person who used the term.
 
Isn't the elbow the optimal fulcrum and should be the only fulcrum in the stroke?
Meaning , that's the only part of the body that bends and moves in stroking.
Not the wrist or shoulder b/c the elbow can only go back and forward and not sideways like the wrist and shoulder ?
 
JoeyInCali said:
Isn't the elbow the optimal fulcrum and should be the only fulcrum in the stroke?
Meaning , that's the only part of the body that bends and moves in stroking.
Not the wrist or shoulder b/c the elbow can only go back and forward and not sideways like the wrist and shoulder ?
Click to expand...

Yes the elbow is the optimal fulcrum as this is the most simple/repeatable mechanical movement, MOST OF THE TIME NOT ALL.

With a nice side arm stroke like Keith, Hoppe or myself righthanded. If you don't use the shoulder and only move the forearm then the stroke will be sweeping across the body and across the shot line if not gripped very light. When gripped properly with no shoulder movement one can deliver the cue straight with a very light grip and the bottom of the forearm will "dead end" or hit its finish spot in the middle of the bicep and the back hand will finish with the index fingers top knuckle pointed toward your other arm.

Because you can easily SWOOP ACROSS the shot in this fashion it is not very accurate, as this will create ENGLISH or Side spin which will affect the CB's trajectory.

With a side arm stroke delivered with the use of the shoulder included the ARCHED movement from left to right with the tip that happens when sans shoulder, this allows the cue to move more straight backwards as opposed to allowing the back hand swing away from the body.

The tip into the cloth with a normal pendulum stroke becomes tip cutting across the CB face with that same pendulum action side armed.

The style of delivery and stance when shooting side arm flip the rules backwards........just like follow becomes backspin off the rail......itsn't that neat.

So because of the nature of the style PISTON style stoke is the optimum delivery system for a side armed player as it is going to better deliver the tip more precise longitudinally across the CB's face, the pendulum stoke side armed is going to want to cut across that face more, making the precise longitudinal placement of the tip harder to accomplish.

Thats the same reason chicken wingers usually stand sort of high as this lessens the angle the arm is kicked out sideways which makes the movement needed by the shoulder less demanding.

-Grey Ghost-
 
GG, not sure I get all of what you said, it's hard for me to visualize what you wrote. But when I think of bringing the shoulder socket into the stroke I think of Mike Davis. Would he be an example of this double fulcrum thing? It's fresh in my mind cuz I just watched him on the Masters stream tonight.
 
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